Génoise
The basic cake of the French pastry repertoire is génoise, used as the foundation for dozens of cakes and other desserts. While it is essentially sponge cake made with butter, it’s rarely eaten plain or on its own. Rather, it might be moistened with liqueur or sweet or fortified wine (Grand Marnier, Sauternes, or Oloroso sherry, for example) and served with a little whipped cream or used as a building block for other desserts like Trifle (page 651).